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Weld334m - User’s manual
F383-COM RS422 Serial communication card
57
Code:33038300
13. F383-COM RS422 Serial communication card
RS422 serial interface for the communication with a remote device.
The communication protocol depends on the functional goal that has to be achieved.
Features:
Data transmission speed : 19,2 kBit/s
Maximum length : 1000m
TXD-RXD LEDs
The 2 green LEDs TXD and RXD on the front panel are used to monitor
the serial port.
When the communication occurs properly, both LEDs are blinking.
In case of an anomaly in the serial port or in the cable, one or both
LEDs remain switched ON or OFF.
13.1 P15 – Connection port
Sub-D 9-pin Female Connector
Pin Signal Function
5 RXD- Inverting differential input
9 nc Not connected
4 RXD+ Non-inverting differential input
8 nc Not connected
3 TXD+ Non-inverting differential output
7 nc Not connected
2 TXD- Inverting differential output
6 nc Not connected
1 GND Ground
Recommended connection components :
•
Connector:
Shielded, male 9-pin SUB-D connector
•
Local and remote connection cable, out of the cabinet, 500m max
Shield connected to the connector case
Serial cable features:
2 twisted pair + 1 wire, single-shield
0,35mmq minimum section
E.g. LappKabel Unitronik Li2YCY (TP)
F383-COM
TX
P
1
5
RX